A set is the mathematical model of a collection of things; a set contains elements or members, which can be mathematical objects of any kind: numbers, symbols, points in space, lines, other geometrical shapes, variables, or even other sets.
Over human history, all peoples and cultures have contributed to the field of Mathematics. Topics like algebra
may seem obvious now, but for many centuries mathematicians had to make do without it. Over the next three
grades, you will explore more advanced and abstract mathematics. It may not be obvious how this applies to
everyday life, but the truth is, mathematics is required for nearly everything you will do one day. Enjoy your
mathematical journey. Remember, there is no such thing as a “maths person” or “not a maths person”. We can
all do mathematics, it just takes practice.
In mathematics, a matrix is a rectangular array or table of numbers, symbols, or expressions, arranged in rows and columns, which is used to represent a mathematical object or a property of such an object. For example, is a matrix with two rows and three columns.